Re: [Bug-gnubg] Odd rollout results of classic reference position

[Øystein Johansen]

ershaw wrote:

> Five off and one closed out is traditioanlly a take. A GnuBg rollout has it
> as a pass. I've got no problem with that.
>
> What is odd is that the equit of No DOuble is greater than 1. How can this
> be? That would make it Too Good in a position where no gammons are possible.
>  
I think this position may be misplayed in the rollouts. If it keeps the 
cube for a roll, X may be able to get a incorrect take from O. I guess 
that what's happening in the rollouts.

> This is yet another position where the doubler is seen to win more games by
> doubling than by holding on to the cube. I would expect O to double X out in
> some games if O has cube access. Therefore X ought to win less games if he
> gives up the cube. Something seems wrong. Is it me?
>  
No, I don't think it's you. I think it's GNU Backgammon

Can you try to play this position a couple of times against GNU and see 
if it does somethink funny in subsequent cube actions? (I guess 
chequerplay will be really simple in this position.)

-Øystein